Two boxes have been setup , each one having 2 NICs (enp2s0,enp5s1) for
Controller && Compute Nodes setup. Before running
`packstack --answer-file=TwoRealNode Neutron ML2&OVS&VLAN.txt` SELINUX set to permissive on both nodes.Both enp5s1's assigned IPs and set to promiscuous mode (192.168.0.127, 192.168.0.137 ). Services firewalld and NetworkManager disabled, IPv4 firewall with iptables and service network are enabled and running. Packstack is bind to public IP of interface enp2s0 192.169.1.127, Compute Node is 192.169.1.137 ( view answer-file ).